July 8, 2015  It is well known that large volcanic eruptions contribute to climate variability. A new study uses new evidence found in both ice cores and corresponding tree rings to show ... read more

June 8, 2015  When thinking about the extinction of Neanderthals some 30,000 years ago, rabbits may not be the first thing that spring to mind. But the way rabbits were hunted and eaten by Neanderthals and modern ... read more

June 4, 2015  Old rocks hold on to their secrets. Now, a geophysicist has unlocked clues trapped in the magnetic signatures of mineral grains in those rocks. These clues will help clear up ... read more

June 3, 2015  About 34 million years ago, global temperatures took a dive, causing a sudden wave of extinctions among European mammals. In North America, however, life went on largely unscathed. A new study ... read more

June 1, 2015  Researchers looking for carbon in equatorial ice cores have found diatoms, a type of algae. Their presence is evidence of what the landscape around the Andes in Peru might have been like more than a ... read more

June 1, 2015  Eight to 16 million years ago, highly explosive volcanism occurred in the area of today's Galapagos Islands. This is shown for the first time by analyses of core samples obtained by the ... read more

June 1, 2015  Near the border with Botswana in the Shashi-Limpopo region lies Mapela, which is now an excavation site. The ruins of what is believed to have been a flourishing urban community for an astoundingly ... read more

May 28, 2015  A new study shows how huge influxes of fresh water into the North Atlantic Ocean from icebergs calving off North America during the last ice age had an unexpected effect -- they increased the ... read more

May 28, 2015  Scientists have reconstructed the climatic development of the Arctic Ocean during the Cretaceous period, 145 to 66 million years ago. At that time the poles were devoid of ice and average ... read more

May 22, 2015  It turns out that the steady dripping of water deep underground can reveal a surprising amount of information about the constantly changing cycles of heat and cold, precipitation and drought in the ... read more

May 11, 2015  Around 55 million years ago, an abrupt global warming event triggered a highly corrosive deep-water current through the North Atlantic Ocean. The current's origin puzzled scientists for a ... read more

May 4, 2015  As with rivers, civilizations across the world rise and fall. Sometimes, the rise and fall of rivers has something to do with it. At Cahokia, the largest prehistoric settlement in the Americas north ... read more

Apr. 30, 2015  An international team of scientists has used the fossil record during the past 23 million years to predict which marine animals and ecosystems are at greatest risk of extinction from human impact. ... read more

Apr. 29, 2015  Climate change may be responsible for the abrupt collapse of civilization on the fringes of the Tibetan Plateau around 2000 B.C. according to archaeologists who found that cooling global temperatures ... read more

Apr. 23, 2015  While climatologists are carefully watching carbon dioxide levels in the atmosphere, another group of scientists is exploring a massive storehouse of carbon that has the potential to significantly ... read more

Apr. 21, 2015  A study based on 1,000 years of temperature records suggests global warming is not progressing as fast as it would under the most severe emissions scenarios outlined by the Intergovernmental Panel on ... read more

Apr. 16, 2015  Researchers at an old geological site talk 'dirt' about how Ice Age climate change led to the extinction of mammoths and mastodons, but to the evolution and survival of bison, deer and ... read more

Apr. 9, 2015  New evidence by geologists dates the closure of an ancient seaway at 13 to 15 million years ago and challenges accepted theories about the rise of the Isthmus of Panama and its impact on world ... read more

Apr. 9, 2015  The onset of northern hemispheric glaciation cycles three million years ago has dramatically changed Arctic climate. Scientists have now for the first time reconstructed the history of Arctic climate ... read more